Update on "[ET Device Support] Module: allocate device memory for planned buffers"

This diff enables module API loading program memory-planed on non-cpu device. It update Module::load_method() to detect device buffers via MethodMeta and allocate device memory using the registered DeviceAllocator. Device memory is managed via DeviceMemoryBuffer RAII objects stored in PlannedMemory, ensuring proper cleanup when the Method is destroyed.

Differential Revision: [D97850705](https://our.internmc.facebook.com/intern/diff/D97850705/)

[ghstack-poisoned]

Author: Gasoonjia

.ci/scripts/setup-qnn-deps.sh

@@ -11,4 +11,5 @@ source "$(dirname "${BASH_SOURCE[0]}")/../../backends/qualcomm/scripts/install_q
 
 setup_libcpp 12
 setup_android_ndk
-install_qnn
+install_qnn
+pip install -r backends/qualcomm/requirements.txt

.ci/scripts/test_wheel_package_qnn.sh

@@ -177,6 +177,9 @@ PY
   "$PIPBIN" install . --no-build-isolation
   popd > /dev/null
 
+  # Install qualcomm backend dependencies  
+  "$PIPBIN" install -r "$REPO_ROOT/backends/qualcomm/requirements.txt"
+
   echo "=== [$LABEL] Import smoke tests ==="
   "$PYBIN" -c "import executorch; print('executorch imported successfully')"
   "$PYBIN" -c "import executorch.backends.qualcomm; print('executorch.backends.qualcomm imported successfully')"

.githooks/README.md

@@ -1,57 +1,63 @@
 # Git Hooks
 
-This directory contains Git hooks for the ExecuTorch repository.
+This directory contains Git hooks for the ExecuTorch repository. It is used as
+`core.hooksPath`, so git looks here instead of `.git/hooks/`.
 
-## Pre-commit Hook
+## Hooks
 
-The pre-commit hook automatically updates the PyTorch commit pin in `.ci/docker/ci_commit_pins/pytorch.txt` whenever `torch_pin.py` is modified.
+### pre-commit
 
-### How It Works
+Runs on every commit:
 
-1. When you commit changes to `torch_pin.py`, the hook detects the change
-2. It parses the `NIGHTLY_VERSION` field (e.g., `dev20251004`)
-3. Converts it to a date string (e.g., `2025-10-04`)
-4. Fetches the corresponding commit hash from the PyTorch nightly branch at https://github.com/pytorch/pytorch/tree/nightly
-5. Updates `.ci/docker/ci_commit_pins/pytorch.txt` with the new commit hash
-6. Automatically stages the updated file for commit
+1. **torch_pin sync** — when `torch_pin.py` is staged, updates the PyTorch commit
+   pin in `.ci/docker/ci_commit_pins/pytorch.txt` and syncs grafted c10 files.
+2. **lintrunner** — runs `lintrunner -a --revision HEAD^ --skip MYPY` on changed
+   files. Auto-fixes formatting and blocks on lint errors. Soft-fails if lintrunner
+   is not installed. Runs `lintrunner init` automatically when `.lintrunner.toml`
+   changes.
 
-### Installation
+### pre-push
 
-To install the Git hooks, run:
+Delegates to `.git/hooks/pre-push` if one exists. This allows backend-specific
+pre-push hooks (e.g., ARM's license and commit message checks) to work alongside
+the repo-wide hooks.
+
+## Installation
+
+Hooks are installed automatically by `./install_executorch.sh`.
+
+To install manually:
 
 ```bash
-.githooks/install.sh
+git config core.hooksPath .githooks
 ```
 
-This will copy the pre-commit hook to `.git/hooks/` and make it executable.
+### ARM backend pre-push
 
-### Manual Usage
-
-You can also run the update script manually at any time:
+ARM contributors should additionally install the ARM-specific pre-push hook:
 
 ```bash
-python .github/scripts/update_pytorch_pin.py
+cp backends/arm/scripts/pre-push .git/hooks/
 ```
 
-### Uninstalling
+## Bypassing
 
-To remove the pre-commit hook:
+To skip hooks for a single commit or push:
 
 ```bash
-rm .git/hooks/pre-commit
+git commit --no-verify
+git push --no-verify
 ```
 
 ## Troubleshooting
 
-If the hook fails during a commit:
+If the torch_pin hook fails:
 
 1. Check that Python 3 is available in your PATH
 2. Ensure you have internet connectivity to fetch commits from GitHub
 3. Verify that the `NIGHTLY_VERSION` in `torch_pin.py` is in the correct format (`devYYYYMMDD`)
-4. Make sure the corresponding nightly release exists in the PyTorch nightly branch
 
-You can run the script manually to see detailed error messages:
+If lintrunner fails:
 
-```bash
-python .github/scripts/update_pytorch_pin.py
-```
+1. Run `lintrunner init` to install linter tools
+2. Check that your virtual environment is activated

.githooks/install.sh

@@ -27,4 +27,68 @@ if git diff --cached --name-only | grep -q "^torch_pin.py$"; then
     fi
 fi
 
-exit 0
+# --- lintrunner ---
+
+if ! command -v lintrunner >/dev/null 2>&1; then
+    echo "Warning: lintrunner not found. Skipping lint checks."
+    echo "Install with: pip install lintrunner lintrunner-adapters && lintrunner init"
+    exit 0
+fi
+
+if [ ! -f .lintrunner.toml ]; then
+    echo "Warning: .lintrunner.toml not found. Skipping lint checks."
+    exit 0
+fi
+
+git_dir=$(git rev-parse --git-dir)
+
+# Portable hash: sha256sum (Linux) or shasum (macOS)
+if command -v sha256sum >/dev/null 2>&1; then
+    toml_hash=$(sha256sum .lintrunner.toml | cut -d' ' -f1)
+else
+    toml_hash=$(shasum -a 256 .lintrunner.toml | cut -d' ' -f1)
+fi
+stored_hash=""
+[ -f "${git_dir}/.lintrunner_init_hash" ] && stored_hash=$(cat "${git_dir}/.lintrunner_init_hash")
+
+if [ "${toml_hash}" != "${stored_hash}" ]; then
+    echo "Running lintrunner init..."
+    if lintrunner init; then
+        echo "${toml_hash}" > "${git_dir}/.lintrunner_init_hash"
+    else
+        echo "lintrunner init failed. Run 'lintrunner init' manually."
+        exit 1
+    fi
+fi
+
+staged_files=$(git diff --cached --name-only --diff-filter=ACMR)
+
+# Use HEAD^ if it exists (skip on initial commit)
+revision_flag="--revision HEAD^"
+if ! git rev-parse HEAD^ >/dev/null 2>&1; then
+    revision_flag=""
+fi
+
+lintrunner -a $revision_flag --skip MYPY
+lint_status=$?
+
+# Check if lintrunner modified any staged files. If so, block the commit
+# so the user can review the changes before committing.
+files_modified=0
+while IFS= read -r path; do
+    [ -z "${path}" ] && continue
+    if ! git diff --quiet -- "${path}" 2>/dev/null; then
+        files_modified=1
+        break
+    fi
+done <<< "${staged_files}"
+
+if [ $files_modified -eq 1 ]; then
+    echo "Lintrunner modified files. Review with 'git diff', then 'git add -u && git commit'."
+    exit 1
+fi
+
+if [ $lint_status -ne 0 ]; then
+    echo "Lint errors found. Fix them and try again, or use 'git commit --no-verify' to skip."
+    exit 1
+fi

.githooks/pre-commit

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# Delegate to local pre-push hook if present (e.g., ARM backend).
+# .githooks/ is set as core.hooksPath, so git won't look in .git/hooks/
+# automatically. This passthrough ensures local hooks still run.
+local_hook="$(git rev-parse --git-dir)/hooks/pre-push"
+if [ -x "$local_hook" ]; then
+    "$local_hook" "$@"
+fi

.githooks/pre-push

@@ -1,11 +1,15 @@
 name: Cadence Build & Test
 
 on:
-  pull_request:
+  schedule:
+    - cron: 0 8 * * *
   push:
     branches:
       - main
       - release/*
+    tags:
+      - ciflow/nightly/*
+  pull_request:
   workflow_dispatch:
 
 concurrency: